diff --git a/doc/Makefile.local b/doc/Makefile.local
index 60bd7184..f476d1da 100644
--- a/doc/Makefile.local
+++ b/doc/Makefile.local
@@ -43,7 +43,7 @@ INFO_INFO_FILES := $(INFO_TEXI_FILES:.texi=.info)
 	rm -f $@ && gzip --no-name --stdout $^ > $@
 
 ifeq ($(WITH_EMACS),1)
-$(DOCBUILDDIR)/.roff.stamp sphinx-html sphinx-texinfo: docstring.stamp
+$(DOCBUILDDIR)/.roff.stamp $(DOCBUILDDIR)/.html.stamp $(DOCBUILDDIR)/.texi.stamp : docstring.stamp
 endif
 
 sphinx-html: $(DOCBUILDDIR)/.html.stamp